. Key to North American birds; containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary. Illustrated by 6 steel plates and upwards of 250 woodcuts. Birds. GINCLID^, DIPPERS. SYLVIID^, SYLVIAS. GEN. 7, 8. 77 ries of which the 1st is spurious, still shorter, square tail, almost liidfleii by the coverts, linear nostrils, slender bill, almost a little turned up (gonys convex, cul- men slightly concave), with no trace of rictal bristles. There is only one genus, with about a dozen species, all inhabit
. Key to North American birds; containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary. Illustrated by 6 steel plates and upwards of 250 woodcuts. Birds. GINCLID^, DIPPERS. SYLVIID^, SYLVIAS. GEN. 7, 8. 77 ries of which the 1st is spurious, still shorter, square tail, almost liidfleii by the coverts, linear nostrils, slender bill, almost a little turned up (gonys convex, cul- men slightly concave), with no trace of rictal bristles. There is only one genus, with about a dozen species, all inhabiting clear mountain streams of most parts of the world, easily progressing under water; feed on aquatic animal substances ; moderately vocal; our species builds a remarltable and elegant dome-like ^^::r ^^V ^ nest of moss, with a hole in one side. 7. Genus CINCLUS Bechatein. ^'^ Water Ouzel. Dipper. Lead-colored, nearly cpper, mtm-isize uniform, but apt to be brownish on head; 7; wing 3^; tail 2^. Rocky Mountain region of N. A. Nutt., ii, .5GU ; Aud,, ii, 182, pi. ; Bu., 229; Coop., 25 mexicanus. Family SYLVIID^. Sylvias. A large familj^, chiefly Old World, sparingly represented in the New. Primaries 10, the 1st short or spurious, about half the 2d, which is shorter than the Cth ; bill slender, about straight, shorter than the head, usually slightljr notched and hooked at tip ; rictus bristly ; nostrils exposed, or slightly overhung, but never denseljr hidden: part have booted tarsi, and these are difflcult to distinguish technically from Turdince and Saxtcolida', but here size is a good criterion, none of our Sylviidce, being over five inches long ; the rest, with scutellate tarsi, are of course distinguishable on siglit from the last mentioned families; from the Certhiidw, bj'' not having stiff acuminate tail-feathers; from the Paridce and Sittidfje by not having denselj' feathered nostrils ; from the Troglodytidce, by the less cohesion of the toes at base ; and fro
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbirds, bookyear1872
